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  1. 原著論文

Quasi-Mono-Energetic Electron Beams from a Laser–Driven Argon Clustered Gas Target for Radiation Medicine

https://repo.qst.go.jp/records/48619
https://repo.qst.go.jp/records/48619
60fb4207-dfb4-404f-a728-9343ad58a2d5
Item type 学術雑誌論文 / Journal Article(1)
公開日 2018-03-22
タイトル
タイトル Quasi-Mono-Energetic Electron Beams from a Laser–Driven Argon Clustered Gas Target for Radiation Medicine
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 Tao, Mengze

× Tao, Mengze

WEKO 488919

Tao, Mengze

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ホァン, カイ

× ホァン, カイ

WEKO 488920

ホァン, カイ

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Li, Dazhang

× Li, Dazhang

WEKO 488921

Li, Dazhang

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Li, Yifei

× Li, Yifei

WEKO 488922

Li, Yifei

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Guo, Xin

× Guo, Xin

WEKO 488923

Guo, Xin

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Ma, Yong

× Ma, Yong

WEKO 488924

Ma, Yong

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Zhao, Jiarui

× Zhao, Jiarui

WEKO 488925

Zhao, Jiarui

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Li, Minghua

× Li, Minghua

WEKO 488926

Li, Minghua

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Wang, Jinguang

× Wang, Jinguang

WEKO 488927

Wang, Jinguang

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Hafz, Nasr

× Hafz, Nasr

WEKO 488928

Hafz, Nasr

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Zhang, Jie

× Zhang, Jie

WEKO 488929

Zhang, Jie

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Chen, Liming

× Chen, Liming

WEKO 488930

Chen, Liming

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黄 開

× 黄 開

WEKO 488931

en 黄 開

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抄録
内容記述タイプ Abstract
内容記述 Purpose: To propose a promising alternative for conventional accelerators for
high energy electron radiation therapy by generating quasi-mono-energetic
electron beams.
Methods: Electron beams with energy up to hundred MeV, 1.8% energy spread,
125 pC charges and a few mrad divergences have been achieved from a 3-mmlong
clustered gas plasma, driven by laser pulse with peak power up to 100 TW.
Optimization of experimental parameters, such as laser contrast and laser-plasma
interaction timing leads to stable laser propagation and high-quality electron
beams.
Results: Clustered gas, in addition to the self-focusing effect, owns two important
features: local solid electron density and efficient absorption of ultra-short laser
pulses. Therefore, high ionization levels and high electron densities could generate
high-charge energetic electron beams. Our experiment has verified that clusters
in the gas jet influence the laser propagation and Wakefield evolution, producing
stable laser guiding and good quality electron beams.
Conclusion: The results demonstrated that the laser-driven clustered gas target
provides a unique method for electron injection and has great potential in
generating mono-energetic collimated electron beams with large beam charge.
Stable and reproducible mono-energetic electron beams with sufficient electron
intensities are required in medical applications, e.g., radiotherapy. Many
engineering issues remain to be solved before clinical application, but laseraccelerated
electron beams present a promising scheme for future radiation
therapy.
書誌情報 Journal of medical physics and applied sciences

巻 2, 号 1, p. 3-1-3-5, 発行日 2017-02
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